18343960 has 16 divisors (see below), whose sum is σ = 41274000. Its totient is φ = 7337568.

The previous prime is 18343943. The next prime is 18344017. The reversal of 18343960 is 6934381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229260 + ... + 229339.

It is an arithmetic number, because the mean of its divisors is an integer number (2579625).

Almost surely, 2^18343960 is an apocalyptic number.

18343960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18343960 is an abundant number, since it is smaller than the sum of its proper divisors (22930040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18343960 is a wasteful number, since it uses less digits than its factorization.

18343960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458610 (or 458606 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 18343960 is about 4282.9849404358. The cubic root of 18343960 is about 263.7329331664.

The spelling of 18343960 in words is "eighteen million, three hundred forty-three thousand, nine hundred sixty".